ROUGH COUNTRY 921658400 FORD 2021-22 F-150 Tremor Loaded Strut Leveling Kit User Manual
- June 13, 2024
- Rough Country
Table of Contents
921658400
FORD 2021-22 F-150/Tremor Loaded Strut Leveling Kit
User Manual
THANK YOU FOR CHOOSING ROUGH COUNTRY FOR YOUR SUSPENSION NEEDS.
Rough Country recommends a certified technician install this system. In
addition to these instructions, professional knowledge of
disassemble/reassembly procedures as well as post installation checks must be
known. Attempts to install this system without this knowledge and expertise
may jeopardize the integrity and/or operating safety of the vehicle.
Please read instructions before beginning installation. Check the kit hardware
against the parts list. Be sure you have all needed parts and know where they
go. Also please review tools needed list and make sure you have needed tools.
PRODUCT USE INFORMATION
WARNING
The taller a vehicle is, the easier it will roll. We strongly recommend,
because of rollover possibility that seat belts and shoulder harnesses should
be worn at all times. Avoid situations where a side rollover may occur.
WARNING
Generally, braking performance and capability are decreased when
larger/heavier tires and wheels are used. Take this into consideration while
driving. Do not add, alter, or fabricate any factory or after-market parts to
increase vehicle height over the intended height of the Rough Country product
purchased. Mixing component brands is not recommended.
Rough Country makes no claims regarding lifting devices and excludes any and all implied claims. We will not be responsible for any product that is altered. If questions exist we will be happy to answer them concerning the design, function, and correct use of our products.
This suspension system was developed using a 34” or 295/70R18-295/60R20, tire on 9” wheels with a +12 offset. Factory wheels and tires can be used. If using a larger tire on the factory wheel, wheel spacers are required. Note if wider tires are used, offset wheels will be required and trimming will be required.
NOTICE
Vehicles will require the EPAS (Electronic Power Assist Steering) plugs to be
disconnected prior to beginning installation of this kit. See installation
instructions. Failure to disconnect these plugs may result in damage to the
EPAS module resulting in an error message being displayed, which will require
replacement of the EPAS module
NOTICE
DEALER AND VEHICLE OWNER
Tools Needed:
5mm Allen Wrench
8mm wrench /socket
13mm wrench / socket
15mm wrench /socket
18mm wrench /socket
21mm wrench /socket
22mm wrench /socket
T45 Torx Bit| Floor Jack
Jack stands
Hammer
Torque Wrench
---|---
Torque Specs:
Size
5/16”
3/8”
7/16”
1/2”
9/16”
5/8”
3/4”| Grade 5
15 ft/lbs
30 ft/lbs
45 ft/lbs
65 ft/lbs
95 ft/lbs
135 ft/lbs
185 ft/lbs| Grade 8
20 ft/lbs
35 ft/lbs
60 ft/lbs
90 ft/lbs
130 ft/lbs
175 ft/lbs
280 ft/lbs
---|---|---
| Class 8.8| Class 10.9
6MM
8MM
10MM
12MM
14MM
16MM
18MM| 5 ft/lbs
18ft/lbs
32ft/lbs
55ft/lbs
85ft/lbs
130ft/lbs
170ft/lbs| 9 ft/lbs
23 ft/lbs
45ft/lbs
75ft/lbs
120ft/lbs
165ft/lbs
240ft/lbs
KIT CONTENTS
Loaded Strut Pair x1
1” Blocks x2
9/16” x 3-1/8” x 9” Semi Round U-Bolts x4
Hardware Bag x1
FRONT INSTALLATION INSTRUCTIONS
-
NOTE: Make sure vehicle is in 2WD before beginning installation.
-
Chock the rear wheels and jack up the front of the vehicle.
-
Place jack stands under the frame rails and lower onto jack stands.
-
Remove the wheels/tires using a 21mm socket.
-
Remove the carpet and skid plate with a 13mm socket/wrench. See Photo 1.
-
Remove the 3 EPAS (Electronic Power Assist Steering) Plugs on the steering assembly by the front differential. Pull the red tab back to unlock as shown by the middle plug in Photo 2.
This must be done BEFORE installation is started. -
Remove tie-rod end using a 21mm wrench. Strike the knuckle with a hammer to loosen the tie rod end. Photo 3.
-
Remove ABS line snap clips using a trim remover tool to get more slack in the line. See Photo 4.
-
Remove the upper ball joint nut using a 18mm socket/wrench. Strike the knuckle to loosen. See Photo 5.
-
Using a 21mm socket, remove brake caliper as shown in Photo 6. Hang caliper out of way. Do not let caliper hang by brake hose as this will damage hose.
-
Remove the rotor. See Photo 7.
-
Remove the ABS wire from the bearing assembly using a 5mm Allen wrench. See Photo 8.
-
Remove the sway bar link using a 21mm wrench and T45 Torx bit. See Photo 9.
-
Remove the axle nut using a 13mm socket. Let the knuckle hang. See Photo 10.
-
Remove actuator using an 8mm socket/wrench. See Photo 11.
-
Remove the lower ball joint using a 21mm socket/wrench and remove the knuckle. See Photo 12.
-
Remove the lower strut nuts using an 18mm socket/wrench. See Photo 13.
-
Remove the upper strut nuts using an 18mm wrench. See Photo 14.
-
Remove the strut from the vehicle. See Photo 15.
-
Install the supplied loaded strut using the stock hardware.
-
Reinstall components in reverse order of tear down.
-
Put on wheels and lower.
REAR INSTALLATION INSTRUCTIONS
- Chock the front wheels.
- Jack up the rear of the vehicle and place jack stands underneath the frame rail.
- Remove the tires and wheels.
- Remove rear shocks using a 15mm, and 18mm wrench. Retain stock hardware. See Photo 1.
- Place the floor jack underneath the axle and remove the stock U-bolts. See Photo 2.
- Lower the axle, remove the stock block and install the new block between the spring and axle perch. See Photo 3.
- Install the new U-bolts and secure with fasteners provided. Tighten using a 22mm socket. See Photo 4.
- Reinstall components in reverse order of tear down.
- Put on wheels and lower.
By purchasing any item sold by Rough Country, LLC, the buyer expressly warrants that he/she is in compliance with all applicable, State, and Local laws and regulations regarding the purchase, ownership, and use of the item. It shall be the buyers responsibility to comply with all Federal, State and Local laws governing the sales of any items listed, illustrated or sold. The buyer expressly agrees to indemnify and hold harmless Rough Country, LLC for all claims resulting directly or indirectly from the purchase, ownership, or use of the items.